Applied to a rod / length of string with bottom weight, the brown paste changes colour to brilliant red where it comes into contact with water, giving you a visual indication as to the depth of the water present. The water can then be pumped out, and the test repeated until there is insufficient water to pump, at which point one of our Water-Soakers or Oilybits Water Absorbing Polymer can be used to absorb the last of it

To remove the bulk of the water we would first recommend pumping the water out with a simple self-priming waste oil/water pump, such as our Drill Powered, Flexible Impellor Pump, and a length of 1/2" Hose (Same size as Garden Hose) before using the absorbtion media as described above